350MW环状模块式高温气冷堆平衡态物理可行性

Physics feasibility of 350 MW ring-type modular high temperature gas cooled reactor

在保证安全的前提下 ,提高环状模块式高温气冷堆(RMHTGR)的功率 ,以改善其经济性。选取 RMHTGR单堆功率为 35 0 MW,利用高温气冷堆物理模拟程序 VSOP对其平衡态进行了初步物理设计研究 ,计算并分析了有效增殖系数 keff、堆内燃耗分布、反应性温度系数、事故下余热排除等参数。结果表明 :堆在平衡态热态满功率和冷态下具有负的反应性温度系数 ,在失流事故下 ,堆内温度不会超过16 0 0℃。

The single reactor power level of a ring type modular high temperature gas cooled reactor (RMHTGR) can be enhanced while meeting the safety criteria to improve the economy of RMHTGR. The single reactor thermal power level of RMHTGR was chosen to be 350 MW. The preliminary physics design of the reactor equilibrium core was completed using the high temperature gas cooled reactor physics simulation code VSOP. The analysis predicted the effective breeding coefficient, the burnup profile, the reactivity temp...